title: Establishment and characterization of a new human extrahepatic bile duct carcinoma cell line (ICBD-1).
abstract: A new human extrahepatic bile duct carcinoma cell line (ICBD-1) was established from surgically resected tumor of a 71-year-old Japanese male patient. ICBD-1 cells proliferate in a layer with a population doubling time of 31.5 h and secrete tissue polypeptide antigen. ICBD-1 cells have a tetraploid pattern with a DNA index of 1.83 and chromosome counts showed equally distribution in a range from 65 to 69. IC50 values for ICBD-1 cells were 200 ng/ml for adriamycin, 400 ng/ml for mitomycin C, 2 microg/ml for cisplatin and 300 ng/ml for 5-fluorouracil. ICBD-1 cells were successfully transplanted to male nude mice, inducing progressive tumor growth. Histologically, nude mouse tumors were less differentiated than the original human tumor. Tumor cells showed alveolar structures with thin fibrous stroma, classified as poorly-differentiated adenocarcinoma. ICBD-1 is the fourth established cell line that originate from extrahepatic bile duct carcinoma and it will be applicable for the experimental studies of this disease.
authors.affiliation: Department of Surgery I, Iwate Medical University, School of Medicine, 19-1 Uchimaru, Marioka, 020, Japan.
authors.forename: I
authors.initials: I
authors.lastname: Takiyama
authors.forename: M
authors.initials: M
authors.lastname: Terashima
authors.forename: K
authors.initials: K
authors.lastname: Ikeda
authors.forename: H
authors.initials: H
authors.lastname: Kawamura
authors.forename: M
authors.initials: M
authors.lastname: Kashiwaba
authors.forename: G
authors.initials: G
authors.lastname: Tamura
authors.forename: T
authors.initials: T
authors.lastname: Suto
authors.forename: F
authors.initials: F
authors.lastname: Nakashima
authors.forename: R
authors.initials: R
authors.lastname: Sasaki
authors.forename: K
authors.initials: K
authors.lastname: Saito
mesh_terms: D000230:Adenocarcinoma / Q000188:drug therapy / Q000235:genetics / Q000378:metabolism / Q000473:pathology*; D000368:Aged; D000818:Animals; D000970:Antineoplastic Agents / Q000494:pharmacology; D001650:Bile Duct Neoplasms / Q000188:drug therapy / Q000235:genetics / Q000378:metabolism / Q000473:pathology*; D017734:Bile Ducts, Extrahepatic / Q000473:pathology*; D002455:Cell Division / Q000187:drug effects; D004273:DNA, Neoplasm / Q000032:analysis; D004305:Dose-Response Relationship, Drug; D004354:Drug Screening Assays, Antitumor; D006801:Humans; D007621:Karyotyping; D008297:Male; D051379:Mice; D008819:Mice, Nude; D009368:Neoplasm Transplantation; D011003:Ploidies; D019396:Tissue Polypeptide Antigen / Q000378:metabolism; D014407:Tumor Cells, Cultured
chemical_list: D000970:Antineoplastic Agents; D004273:DNA, Neoplasm; D019396:Tissue Polypeptide Antigen